Fluid-pressure suction apparatus.



PATENTED JAN 22,.190'7. E. S. B. VON LINDENSTAMM. FLUID PRESSURE SUCTION APPARATUS.

APPLICATION FILED 8313126, 1906.

I Ton/ll whom it mag concern:

UNrrEn s'rnrns EMIL SCHNIZER EDLER VON PATENT orFIoE.

LINDENs'r-AMM, or VIENNA, AUSTRIA- HUNGARY.

FLUHD-PRESSURE sucTsoN APPARATUS iiio. 842,100.

Be it known that I, EMIL SCHNIZER EDLER VON LINDENSTAMM, a subject of the Emperor of Austria-Hungary, residing at Vienna, Em-

pire of Austria-Hungary, haye invented certain new and useful Improvements in Fluid- Pressure Suction Apparatus; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention refers to suction ap-' paratus of that class in which, through the-action of the suction of a steam (gas or li uid) jet issuing under pressure from a nozz e, a vacuum is produced, such 'as is required for cleaning apparatus, vacuum-brakes, &c.

In all apparatus of this kind at present known the arrangement of the nozzle in the suction-conduit is of such a'nature that-this nozzle is laced wholly or to its greatest extent in t e suction-conduit. This circumstance, especially when the apparatus had to be used for the purposes of cleaning, possessed the disadvantage that the air drawn off by suction and impregnated with impurities had to pass through the free space existingbetween the outer wall of the nozzle and the inner wall of the suction-conduit, owing to which the impurities frequently got clogged in the suction-conduit.-

The drawback is avoided in the present in vention by the fact that the nozzle which'enters the suction-conduit at a point where it is bent in the shape of a knee does not project at all or,at any rate, only'to a mere fraction of the diameter of the suction-conduit (practically for not more than one-fifth of the suction-conduit diameter) beyond theinner wall of the suction-conduit forthepurpose of obtaining as small a reduction as possible of the cross-section of thepassage.

The drawing shows in section a form of execution of the suction apparatus according to the present invention.

The apparatus consists of a pipe-bend a, to

Specification of Letters Patent. Application filed September 26, 1906. Serial Ila 336.357.

Patented Jan. 22, 1907.

be-inserted into the suction-conduit. At the point where this pipe-bend forms the knee there is cast on a pipe connection 1), into which the suct1en-nozzle 0 1s screwed.

The arrangement of the pipe connection I) and the suction-nozzle c is carried out in such a manner that the axis of the latter is inclined toward the axis a of that portion of the pipebend' a which is before the knee, while it preferably coincides with the axis a of that ortion of the pipe-bend which is beyond the nee. I

The pipe-bend and the pipe connection, which contains the nozzle, are preferably made outiof one iece.

In the examp e shown in the drawing the nozzle 0 does not'project out of the wall of the pipe-bend a, and therefore permits the passage of a current of air through the whole extent of the cross-section of the pipe; but the nozzle might also, without-deviating from the object of the invention, project into the inside of the wall of the pipe-bend by a small fraction of the suction-conduit diameter without reducing the cross-section to such an extent as in the previously-known arrangements, and without a clogging of the suctionconduit, through the impurities carried along in it taking place, and, further, without materially reducing the effectiveness of the apparatus. p

I claim In combination with a knee-shaped suc- 

